The minister stated that rescuing the trapped individuals would take at least three to four days, as the accident site is filled with muck and debris, making it a daunting task for the rescuers.
"To be honest, the chances of their survival are very, very, very, very remote. Because, I myself went up to the end, almost just 50 meters short (of the mishap site). When we took photographs, the end (of the tunnel) was visible. And out of the 9 meter diameter (of the tunnel)--almost 30 feet, out of that 30 feet, mud has piled up up to 25 feet", he told PTI.
"When we shouted their names also, there was no response. so, there is no chance at all," he said.
The persons who have been trapped in the collapsed tunnel for the past over 48 hours have been identified as Manoj Kumar and Sri Niwas from Uttar Pradesh, Sunny Singh (Jammu and Kashmir), Gurpreet Singh (Punjab) and Sandeep Sahu, Jegta Xess, Santosh Sahu and Anuj Sahu, all from Jharkhand.
Of the eight, two are engineers, two operators and four labourers. Krishna Rao said the process of clearing the debris is underway with several machinery in place.
According to him, the Tunnel Boring Machine (TBM) which weighs a few hundred tons, got almost flushed away by about 200 meters after the collapse and due to the gushing water.
"Even, even assuming they (the trapped persons) are in the lower part of the TBM machine, assuming even if it is intact on the top, where is the air (oxygen)? Underneath, how the oxygen will go," he asked though pumping of oxygen and dewatering have been continuously done.
"For removing all the debris and all that, in spite of all types of efforts, all types of organizations (working), it takes, I think it takes not less than 3-4 days (to extricate the people)," Rao, who had overseen the rescue operations along with Irrigation Minister Uttam Kumar Reddy, said.
(With inputs from PTI)
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